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svlad2 [7]
3 years ago
10

Air contains Nitrogen, Oxygen and Carbon Dioxide gases, all retaining their individual, distinct chemical properties. Air is the

refore best described as a(n) _______. a. mixture c. solution b. compound d. ion
Chemistry
2 answers:
jonny [76]3 years ago
4 0
Mixture is correct answer
Scilla [17]3 years ago
3 0
I think it is A, mixture because it is composed of many gases and elements. 
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Liquids have a(n)____shape and A(n)_____volume.
shusha [124]
B. Indefinite, definite
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3 years ago
A solution of malonic acid, H2C3H2O4 , was standardized by titration with 0.1000 M NaOH solution. If 21.17 mL of the NaOH soluti
MrRa [10]

Answer: The molarity of the malonic acid solution is 0.08335 M

Explanation:

H_2C_3H_2O_4 +2NaOH\rightarrow Na_2C_3H_2O_4+2H_2O

To calculate the molarity of acid, we use the equation given by neutralization reaction:

n_1M_1V_1=n_2M_2V_2

where,

n_1,M_1\text{ and }V_1 are the n-factor, molarity and volume of acid which is H_2C_3H_2O_4

n_2,M_2\text{ and }V_2 are the n-factor, molarity and volume of base which is NaOH.

We are given:

n_1=2\\M_1=?\\V_1=12.70mL\\n_2=1\\M_2=0.1000M\\V_2=21.17mL

Putting values in above equation, we get:

2\times M_1\times 12.70=1\times 0.1000\times 21.17\\\\M_1=0.08335M

Thus the molarity of the malonic acid solution is 0.08335 M

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3 years ago
8 questions please please help i will make you barinliest 1. Photosynthesis is an important process that converts light energy i
blagie [28]

d.thermal

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34 Points!! 17 Each Points Please Help ASAP!! View Attached Image!! Will Mark Brainliest If All Are Answered!!
Katarina [22]

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I think it is A _ B_C_D

Explanation:

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How do i found out how animals gain energy and from where​
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Animals gain energy from the food they eat. Some animals eat plants while others eat other animals. This is passing of energy from the sun to plants to animal to other animals is called a food chain

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3 years ago
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